A more thorough explanation:

Definition: Deterrent danger is an obvious danger that an occupier of land creates to discourage trespassers, such as a barbed-wire fence or spikes on the top of a wall.

Example: A homeowner installs a security system with motion sensors and cameras to deter burglars from entering their property.

This example illustrates how the homeowner has created a deterrent danger by installing a security system to discourage potential trespassers from entering their property. The security system serves as a warning to potential burglars that their actions will be detected and could result in consequences.

Another example: A business owner puts up a sign that says "Beware of Dog" to deter people from entering their property without permission.

This example shows how the business owner has created a deterrent danger by using a sign to warn potential trespassers of the presence of a dog on their property. The sign serves as a warning that the dog could pose a threat to anyone who enters the property without permission.

Deterrent danger is a legal concept that allows property owners to take reasonable measures to protect their property from trespassers. However, property owners must also ensure that their actions do not pose an unreasonable risk of harm to others.